diff --git a/arch/x86/lib/tables.c b/arch/x86/lib/tables.c
new file mode 100644
index 0000000..b390a4b
--- /dev/null
+++ b/arch/x86/lib/tables.c
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/tables.h>
+
+u8 table_compute_checksum(void *v, int len)
+{
+	u8 *bytes = v;
+	u8 checksum = 0;
+	int i;
+
+	for (i = 0; i < len; i++)
+		checksum -= bytes[i];
+
+	return checksum;
+}
+
+void write_tables(void)
+{
+	u32 __maybe_unused rom_table_end = ROM_TABLE_ADDR;
+
+#if CONFIG_GENERATE_PIRQ_TABLE
+	rom_table_end = write_pirq_routing_table(rom_table_end);
+	rom_table_end = ALIGN(rom_table_end, 1024);
+#endif
+}